Answered

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help pls
8 ft
5 ft
h
9 ft

Help Pls 8 Ft 5 Ft H 9 Ft class=

Sagot :

DWRead

Answer:

Step-by-step explanation:

a = 5 ft, b = 8 ft, c = 9 ft

semiperimeter s =  (a+b+c)/2

=  (5 + 8 + 9)/2

=  11 ft

area = √(s(s-a)(s-b)(s-c))

 = √[11(11-5)(11-8)(11-9)]

 = √396 ft²

area = ½(9)h = √396

4.5h = √396

h = √396/4.5 ≅ 4.42 ft

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